Van Essen CTD-Diver DI28 Series Product Manual Download Page 4

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Contents

Introduction ......................................................................................................................................... 1

About this Manual ...................................................................................................................... 1

Operating Principle .................................................................................................................... 1

Measuring Water Level ............................................................................................................... 2

Measuring Temperature ............................................................................................................. 4

Measuring Conductivity ............................................................................................................. 4

CTD-Diver Model ......................................................................................................................... 6

Factory Calibration Procedure................................................................................................... 6

Technical Specification ....................................................................................................................... 7

General ....................................................................................................................................... 7

Environmental ............................................................................................................................ 8

Transportation ........................................................................................................................... 8

Temperature ............................................................................................................................... 8

Pressure ...................................................................................................................................... 9

Conductivity ............................................................................................................................. 10

Sample Interval and Methods .................................................................................................. 10

CTD-Diver Installation and Maintenance .......................................................................................... 13

Introduction ............................................................................................................................. 13

Configuring and Reading the CTD-Diver .................................................................................. 13

Installation in a Monitoring Well .............................................................................................. 16

Installation in Surface Water.................................................................................................... 16

Use of CTD-Divers at Varying Elevation ................................................................................... 17

Use in Seawater ........................................................................................................................ 17

Biofouling ................................................................................................................................. 17

CTD-Diver Maintenance ........................................................................................................... 17

User Conductivity Calibration .................................................................................................. 17

Appendix I Use of CTD-Divers at Varying Elevations ...................................................................... 20

Appendix II CTD-Diver Communication Protocol ........................................................................... 21

Introduction ............................................................................................................................. 21

Serial Port Settings ................................................................................................................... 21

Frame Format ........................................................................................................................... 21

List of Commands .................................................................................................................... 22

Appendix III CTD-Diver Accessories ................................................................................................ 27

Diver-Office software ............................................................................................................... 27

USB Reading Unit ..................................................................................................................... 27

Stainless Steel Cable ................................................................................................................ 27

Cable Clip .................................................................................................................................. 28

Diver Copper Shield.................................................................................................................. 28

Smart Interface Cable .............................................................................................................. 28

Communication Cable ............................................................................................................. 29

Diver-Mate ................................................................................................................................ 29

Diver-Link ................................................................................................................................. 30

Summary of Contents for CTD-Diver DI28 Series

Page 1: ...CTD Diver DI28x Series...

Page 2: ...n Essen Instruments B V will not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material In no event shal...

Page 3: ...ve as amended by EN61326 1 2013 The product s to which this declaration relates is in conformity with the essential protection requirements of 2014 30 EU Electromagnetic Compatibility directive The pr...

Page 4: ...ion 13 Configuring and Reading the CTD Diver 13 Installation in a Monitoring Well 16 Installation in Surface Water 16 Use of CTD Divers at Varying Elevation 17 Use in Seawater 17 Biofouling 17 CTD Div...

Page 5: ...ion is etched using a laser and is consequently chemically neutral and not erasable About this Manual This manual contains information about Van Essen Instruments CTD Diver with part number DI28x see...

Page 6: ...he barometrically adjusted water values can be related to a reference point such as the top of the monitoring well or Mean Sea Level MSL or any other vertical reference datum 1 3 1 Converting Diver Da...

Page 7: ...m the top of casing to the water level The value of the water level is positive unless in exceptional circumstances the water level is situated above the top of casing The cable length can now be calc...

Page 8: ...ter levels and temperature the CTD conductivity in milli Siemens per centimeter mS cm A change in conductivity may be caused by for example changes in water flow or increasing decreasing pollution or...

Page 9: ...r 50 80 1 5 1 Specific Conductivity The specific conductivity of an electrolyte solution is defined as the conductivity if the solution is at a certain reference temperature The specific conductivity...

Page 10: ...nductivity and has the following measurement options Fixed length intervals in fixed length or continuous memory Average values Pre programmed or user defined pump tests Event based The CTD Diver only...

Page 11: ...tion Interface Optically separated Protocol Serial RS232 a limited set of commands is available as specified in Appendix II Memory capacity 288 000 measurements working 144 000 measurements backup 144...

Page 12: ...acity The accuracy of the clock is highly dependent on temperature The clock is actively compensated for temperature variations Environmental Ingress protection IP68 10 years continuously submerged in...

Page 13: ...e true value The algebraic sum of all the errors that influence the pressure measurement These errors are due to linearity hysteresis and repeatability During the CTD Diver calibration process a CTD D...

Page 14: ...adjustable no backup memory 2 7 1 Fixed When this method is selected the CTD Diver will take and store samples in regular time intervals For example with a 10 second fixed record interval the CTD Div...

Page 15: ...12 00 00 It will immediately record a sample pressure temperature and conductivity The recorded conductivity is 23 mS cm After 30 seconds the CTD Diver takes a new sample the conductivity is 23 5 mS c...

Page 16: ...600 1 1 seconds 10 minutes 2 1080 5 5 seconds 90 minutes 3 5400 10 10 seconds 15 hours 4 136920 30 30 seconds 47 days Aquifer Log Scale Test 2 Month Base Sample Interval 5 seconds Step Number of samp...

Page 17: ...D Diver can be programmed started stopped and its data read using the Diver Office software The latest version of Diver Office can be downloaded for free from www vanessen com Once the software is ins...

Page 18: ...immediately Upon clicking Start the Diver will begin to take and record samples as defined in the CTD Diver settings Future Start Select this option to start the CTD Diver at a specified time in the f...

Page 19: ...ecorded by the Diver New Data download only newly recorded data since the last data download This option is not available when the sample interval is 5 seconds or less Backup Data download data from t...

Page 20: ...the pressure sensor in the Diver must be added to obtain the overall effective cable length This is depicted in the diagram below It is also possible to install the CTD Diver with a communication cabl...

Page 21: ...antly reduce the growth of algae on the electrodes Thus reducing the need for maintenance and reducing the time spent on site CTD Diver Maintenance The CTD Diver casing can be cleaned with a soft clot...

Page 22: ...n meet its specifications for the full measurement range Note When the CTD Diver has not been used for an extended period take the following steps prior to calibration Program the CTD Diver with a one...

Page 23: ...ncentration Diver Office will then calibrate the CTD Diver according to the specified solutions It is important to keep the CTD Diver connected until the success message appears If the calibration fai...

Page 24: ...placed at a different elevation from the other Divers in a monitoring network it is possible for a deviation to occur in the barometrically compensated data due to the relationships referred to above...

Page 25: ...acity read status started stopped future start free memory Serial Port Settings Bitrate 9600 Parity None Databits 8 Stopbits 1 Frame Format The frame format for a command response is STX 1 byte Length...

Page 26: ...Date Time Read the date time of the Diver clock Command STX 5 CL None CC Response STX 22 CL YY MM DD HH MM SS CC Data field length is 17 characters per described format YY MM DD HH MM SS Date time fo...

Page 27: ...racters per described format YY MM DD HH MM SS Date time format 17 characters XXXXX XXX value Level in cmH2O and with 3 decimal 9 characters ZZZZZZ ZZZ value Temperature in degrees Celsius with 3 deci...

Page 28: ...VVVVV CC Data field length is 20 characters per described format PP Diver type 2 characters type is 24 for CTD Diver XXXXXXXXXX Product name Diver 10 characters VVVVVV Firmware version number 6 charac...

Page 29: ...XXXXXXXXXX YYYYYYYYY ZZZZZZZZZ CC Data field length is 30 characters per described format XXXXXXXXXX Record method 10 characters YYYYYYYYY Record interval 9 characters ZZZZZZZZZ 9 spaces not used XXX...

Page 30: ...will be returned in the following format STX 15 FL XXXXXXXXXX CC Data field length is 10 characters per described format XXXXXXXXXX Failure error description 10 characters Results Description TIME OUT...

Page 31: ...h French German Polish Portuguese and Spanish Free download from www vanessen com USB Reading Unit The Diver USB Reader can be used for programming or reading the Diver Connect the USB Reader to the U...

Page 32: ...opper coil shield specifically designed to significantly reduce the growth of algae on the electrodes Thus reducing the need for maintenance and reducing the time spent on site Part no AS350 Smart Int...

Page 33: ...r Part no AS2xxx xxx length in meter e g 10 meter cable is AS2010 Diver Mate The Diver Mate is designed for simple and fast download of data increasing download efficiency while reducing data transfer...

Page 34: ...is the Diver Link a compact 4G LTE telemetry unit The Diver Link is suitable for the continuous long and short term monitoring projects Diver Link is easy to install in a variety of borehole locations...

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